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%I #14 Mar 02 2015 02:58:56
%S 7,0,2,43,11,13,31,149,347,23,439,223,461,173,5,71,197,1153,191,307,
%T 1657,971,9473,19,2399,1607,6781,89,9187,281,23623,15077,25579,17203
%N a(n) is least prime p such that 7 is the n-th term in the Euclid-Mullin sequence starting at p, or 0 if no such prime p exists.
%C The sequence is not monotonic. Compare to A093882.
%C Next term exceeds 50000. - _Sean A. Irvine_, Jan 12 2012
%e a(5)=11 because p=7 first arises in EM at position 5, which is initiated with 11: {11,2,23,3,7,10627,433}; see A051309.
%Y Cf. A000945, A051308-A051334, A056756, A093777-A093783.
%K more,nonn
%O 1,1
%A _Labos Elemer_, May 05 2004
%E Definition clarified, terms corrected and extended by _Sean A. Irvine_, Apr 15 2011
%E More terms from _Sean A. Irvine_, May 22 2011
%E 25579 and 17203 from _Sean A. Irvine_, Jan 11 2012
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